chore(android): use weakRef

Author: farfromrefug

src/audio/player.android.ts

@@ -30,6 +30,7 @@ export class AudioFocusManager extends Observable {
  private _mAudioFocusGranted: boolean = false;
  private _durationHint: AudioFocusDurationHint;
  private _audioPlayerSet = new Set<TNSPlayer>();
+ private _mOnAudioFocusChangeListener: android.media.AudioManager.OnAudioFocusChangeListener;
 
  constructor(options?: AudioFocusManagerOptions) {
  super();
@@ -41,23 +42,23 @@ export class AudioFocusManager extends Observable {
  // Request audio focus for play back
 
  const playbackAttributes = new android.media.AudioAttributes.Builder().setUsage(options.usage).setContentType(options.contentType).build();
+ const that = new WeakRef(this);
+ this._mOnAudioFocusChangeListener = new android.media.AudioManager.OnAudioFocusChangeListener({
+ onAudioFocusChange: (focusChange: number) => {
+ that?.get()?.notify({
+ eventName: 'audioFocusChange',
+ object: this,
+ focusChange
+ });
+ }
+ });
  this._audioFocusRequest = new android.media.AudioFocusRequest.Builder(options.durationHint)
  .setAudioAttributes(playbackAttributes)
  .setAcceptsDelayedFocusGain(true)
  .setOnAudioFocusChangeListener(this._mOnAudioFocusChangeListener)
  .build();
  }
 
- private _mOnAudioFocusChangeListener = new android.media.AudioManager.OnAudioFocusChangeListener({
- onAudioFocusChange: (focusChange: number) => {
- this.notify({
- eventName: 'audioFocusChange',
- object: this,
- focusChange
- });
- }
- });
-
  private needsFocus(): boolean {
  return this._audioPlayerSet.size > 0;
  }